Recuperator for heating air and gases.



E. GOBBE.

BEOUPEBATOR FOR EEATING AIE AND'GASES.

APPLIOATION PILED MAB.. 14, 1908.

Patented Dec. 22, 1908.

3 SHEETS-SEEET 3.

, m w 'fim y UNITED STATES- PATENT OFFICE.

EMILE GOBBE, OF JUMET, BELGIUM.

CUPEBATOR FOB HEATING AIR AND GASES.

Spedflcation of Letters Patent.

Patented Dec. 22, 1908.

' Applioflon fllad Inch 14, 1906. Serial No. 305,966.

but after some months of service the air.

which travels in the o posite direction to the products of combuston esca es to a large extent through the leaks that ave been produced'in the apparatus, and this defect asi u to six mont that it becomes'impossible to use the recu-V sumes such: roportions that after fromtfive of use the leaks are so large perator. This could not be otherwisebecause the difierences of temperature which arise fre uently cause a succession of contractions v an expansions( Now during the contracton small fissures are produced and into these fissures small refractory fparticles. fall so that the constituent parts o the appara'- tus' are no longer able to return to their initial position. -As these effects are frequently repeated, the fissures progressively increase and soon render the a aratus unfit for use.

The recuperator whc forms the object of this inventon has been devised for the purpose of obviating these defects.

Figure 1 is a sectional longitudinal elevation on the line A-B of Fi 3. Fig. 2 is a cross section on the line C- or the line C'- D' of Fig. 3. Fig. 3 is a sectional plan on the line E- -F of Fig. 1. Fi 4 is a sectional plan on the line G -H of Fi 2. Figs. 5, 6 and 7 'epresent in detail a xollow brick of two diierent sizes.

'I his a paratus is constructed with hollow bricks, al of the same shape.. These bricks are formed with one or a number qi holes. First of all a course of hollow bricks' is laid, being laced one against the other, turning them a l in the same direction, then a layer of mortar is spread on this first course and a .second course is laid in the same manner, all

the hollow bricks being directed at right angles to those of the first course, however, care being of course had to appropriately stagger the joints. A fresh layer of mortar isthen ap lied in order to correct the imperfections o the bricks and a thi'd course is lad, the bricks being directed in'the same way as in the first course,- and so on in succession to thetop of the apparatusall the bricks in the courses of even number being perpendicular to those in the courses of uneven number. cleaning holes o posite each horizontal conduit, the same ollow bricks being utilized for forming these apertures which are closed With solid plugs not shown in the drawings.

In the a paratus represented in the drawing the hol ow bricksof the upper courses are lar er than those at the bottom in order to faclitate the passage of the air and products 'of combustion at ,this place; because their Volume is then reater owing to their high temperature. .T ese larger bricks also afi'ord In addition there are forined greater facilities for the cleaning of the uper conduits wherethe deposits of dust are a er than elsewhere. i

separate the recuperator into two parts by the wall m in order to show that it may be used for heating air on one side and gas on the other side, without any great complication.

The manner in which the air, the gas and the smoke circulate in this apparatus is as follows: Assuming that the recuperator s connected to a furnace of any appro riate kind in such a manner that the vertica conduit a is able to receive the products of comcourses, then return in the inverse direction through the passages b, following the path made for them by the partitons 0 and c.

They continue to descend to the bottom of horizontal passages b of the first upper` the apparatus, successively traversing in 3 zig-zag all the horizontal courses b, b

finally entering the passage d which conducts them to' the chinney. 'lhe air that it is desired toheat enters at the bottom through the openin e; it first of`all passes into the 'conduits o the lower transverse Courses 1 and ascends in a zig-zag path towards tie top, successively traversing the transverse courses f f f*, f entering the collectorgin a hot condition; from the collector it passes to the furnace through the Conduit h.

Gas that it is desired to heat follows the same path as the air, but in the adjacent compartment; it enters at the lower part of the apparatus through the opening k and ascends in a zig-zagpath in the transverse conduits Z Z Z Z* Z enter-ing; the collertor n in u hot stnte; froni this collwtor it pisses to the i furnztce through the eonduit 0.

lt Will be retdily understood thnt leukziges ere inpossible in in upparatus of this kind, as there ure always three pzirtitions sepzu'zting the air or the ;rus froni the products oi' combustion; two pnrtitions are constituted by the wlls oi' the hollow bl'lCliS and one by the layer of i'nortnr that unites theni. Further, as the holiow bricks ure lnid one ngninst the other without any free space between theni, the whole tornis what nn'ty be terned a Inonolith in which the expinsions und core traetions take phu-e rendily without being' capable of causing any eratk or erevice, so that the ztpprnt us retnins its tightness iudefinitely.

Vi'htt I clztin and desire to secure by Letters Patent of the United States is:--

l. A reeuperntor tor heating air and gases, composed of hollow bricks all arrnnged horizontally one above the other in Courses of even and uneven order or number and made inelastie in horizontal direction, one course of bricks serving for the mssage of the products of conbustion and the two adjacent courses serving forthe passage of the gases to be heated.

2. A recuperator for heating air and gases, composed of hollow brieks all arranged horizontally one above the other in Courses of even and uneven order or number and made inelastic in horizontal direction, one course ot' bricks serving for the iassage of the products of conibustion and the two adjacent courses serving for the passage of the gases to beheated, the joints between the bricks being Without interengaging members.

3. A reeuperator for heating air and gnses, composed ol hollow bricks all arranged horizontally one `atbove the other in courses ot even and unt-ven order or number and made inelast-ic in horizontal direction, one course ot' brieks serving 'tor the dassege ot' the products of conbustiou ami the two sdjacent, courses serving tor the passage of the gases to be hented, the joints between the brioks being without interengaging members, the bricks of each alternnte course being (lisposed at right angles to each other.

4. In a hernetieally tight.- recuperator conprising alternate layers of apertured members, the npertures in :lternate layers extending in :i transverse direction, means for detlecting the air or gases froni one layer to I the next corresponding layer, the Courses being ot' even and uneven number or order, one course serving for the passage of the products ot eombustion, and the courses immediztel above and below the 8211110 serving i'or the passage of the gases to be hcated, the ::ir und gis passing through the reeuperators in ditlerent directions, eonduits for conductinnuir and gas to said :rpertured iuenhm-s, the joints ot the bricks in one layer being out i ot register with the joint& ot' the briehs in nn j mljiltl'lit layer and, eonduits tor lendine; air i nud gas 'l'ron said members :Liter said :ur and 3 gas hs passed therethrough, the upper ilnyers benn., ot hirgcr members tham the i lowe: ones to eoinpenszite for the inerrnsed Volume oi' air and products oi eombustion resulting: treni their higher temperature.

5. i\ reeuperaror for heatin air and geses eoni n'ising nlteruate hyers oi' npertured britks without interengi genent and 'torniug ft hernetir whole and ti constructional artiapertures in the bricks ot each layer extending in the seine direction and the brieks 'in one layer being angularly inrlinc d to the bricks in the adjncent layer, the uppea lujf l's being ol' larger members than. the lower ones to eomensate for 'the increased 'volune ot air an( products. ot conbustion resulting' froni their higher temperature.

6. A recuperator ot' bent having provision Whereby the air or gas to be heated and the sages arranged 'superposed horizontal rows, one roW serving for the products ot eonbustion andjarranged between u lower row and an upper roW for air and glSllH-* passnges for the products of conbustion haxing n direction at right angles to that ot' the air passziges, the rows being se mrntml. by two horizontal faces of hollow brieks ::indet morte-r between. such faces, the vertical ther-s serving only :s stays avoiding the necessity of a tight joint therebetween.

In testinony Whereof I have bert-unto et my hand in presence of two subscribing .\'itnesses this twenty fourth day of l*`elruer 1906.

: EMLE GOBBE.

VVitnesses:

r T. DULLUM FLENNERT,

JULES blONART.

iice cemeuted together, the oints '['ormed by ebutting bricksrof ;in adjuent layer, them products of combustion pass through pns-` 

